Solutions by everydaycalculation.com
1st number: 4 2/3, 2nd number: 6/15
143 + 615 is 7615.
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Related: 28/3+6/15 14/3+12/15 14/6+6/15 14/3+6/30 42/3+6/15 14/3+18/15 14/9+6/15 14/3+6/45 70/3+6/15 14/3+30/15 14/15+6/15 14/3+6/75 98/3+6/15 14/3+42/15 14/21+6/15
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